This show, which debuted last fall and was relaunched Sept. 29, is a zingy spy caper that contains all the savvy humor and pop-culture references you’d expect from Josh Schwartz, the man behind the hit soaps “Gossip Girl” and “The O.C.”

After some first-season growing pains – and the interruption of the writers’ strike – “Chuck” has returned more focused than ever on its many strengths: The show’s versatile ensemble cast, the unrequited romance between would-be spy Chuck Bartowski (Zachary Levi) and CIA agent Sarah Walker (Yvonne Strahovski), and the frequently hilarious antics of Chuck’s co-workers at the Buy More electronics store.